JP4411302B2 - Multiband transceiver - Google Patents

Multiband transceiver Download PDF

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JP4411302B2
JP4411302B2 JP2006184715A JP2006184715A JP4411302B2 JP 4411302 B2 JP4411302 B2 JP 4411302B2 JP 2006184715 A JP2006184715 A JP 2006184715A JP 2006184715 A JP2006184715 A JP 2006184715A JP 4411302 B2 JP4411302 B2 JP 4411302B2
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frequency signal
output
amplifier
local oscillation
multiband
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JP2007020171A5 (en
JP2007020171A (en
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ジン ウック ゾン，
スン オ カン，
ヨン ドク キム，
チャン リム バック，
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Ace Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/50—Circuits using different frequencies for the two directions of communication
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/26—Modifications of amplifiers to reduce influence of noise generated by amplifying elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
    • H04B1/405—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency with multiple discrete channels

Description

本発明は、マルチバンド送受信装置に係り、特に各バンドの送受信処理部に分配器からの局部発振周波数信号を均一に分配して信頼性を向上させたマルチバンド送受信装置に関する。   The present invention relates to a multiband transmission / reception apparatus, and more particularly to a multiband transmission / reception apparatus in which a local oscillation frequency signal from a distributor is uniformly distributed to a transmission / reception processing unit of each band to improve reliability.

従来のマルチバンドシステムの送受信装置は、ＣＤＭＡ(Code Division Multiple Access)バンド及びＷＣＤＭＡ(Wide-band Code Division Multiple Access)バンドの送信処理部と受信処理部から構成される。   A transmission / reception apparatus of a conventional multiband system includes a transmission processing unit and a reception processing unit of a CDMA (Code Division Multiple Access) band and a WCDMA (Wide-band Code Division Multiple Access) band.

図１は従来の技術に係るマルチバンドシステムの送受信装置の構成図である。
図１に示すように、前記マルチバンドシステムの送信処理部３７は、送信周波数信号を増幅する第１増幅器１、１９と、それぞれの周波数による基準周波数信号を出力する発振器４３、４７と、前記発振器４３、４７から出力される基準周波数信号と比較して一定の局部発振周波数信号を出力する周波数合成器４４、４８と、前記第１増幅器１、１９からの信号と前記周波数合成器４４、４８からの局部発振周波数信号とを混合し、それぞれのダウンコンバートされた中間周波数信号を出力する第１コンバータ２、２０と、前記第１コンバータ２、２０から出力された中間周波数信号の損失を補償するために増幅する第２増幅器３、２１と、前記第２増幅器３、２１から出力された信号の隣接周波数及び高調波信号を除去する第１表面弾性濾波器４、２２と、前記第１表面弾性濾波器４、２２から出力された信号の電力の大きさを調節する第１可変減衰器５、２３と、前記第１可変減衰器５、２３から出力された信号を増幅する第３増幅器６、２４と、前記第３増幅器６、２４からの信号と前記周波数合成器４４、４８からの局部発振周波数信号とを混合し、アップコンバートされた周波数信号を生成する第２コンバータ７、２５と、前記第２コンバータ７、２５からのアップコンバートされた周波数信号の高調波信号を除去するための第１通過濾波器８、２６と、前記第１通過濾波器８、２６から出力された信号を所定の電力の大きさに増幅する第４増幅器９、２７とから構成される。
韓国特許公開ＫＲ１０−２００４−４３８２５ FIG. 1 is a configuration diagram of a transmission / reception apparatus of a multiband system according to the prior art.
As shown in FIG. 1, the transmission processing unit 37 of the multiband system includes first amplifiers 1 and 19 that amplify transmission frequency signals, oscillators 43 and 47 that output reference frequency signals according to respective frequencies, and the oscillators. From the frequency synthesizers 44 and 48 for outputting a constant local oscillation frequency signal in comparison with the reference frequency signals output from 43 and 47, the signals from the first amplifiers 1 and 19, and For the first converters 2 and 20 that output the respective down-converted intermediate frequency signals, and to compensate for the loss of the intermediate frequency signals output from the first converters 2 and 20. Second amplifiers 3 and 21 for amplifying the signals, and a first surface elastic filter for removing adjacent frequency and harmonic signals of signals output from the second amplifiers 3 and 21 4 and 22, first variable attenuators 5 and 23 for adjusting the power level of the signals output from the first surface acoustic filters 4 and 22, and outputs from the first variable attenuators 5 and 23. The third amplifiers 6 and 24 for amplifying the generated signals, the signals from the third amplifiers 6 and 24 and the local oscillation frequency signals from the frequency synthesizers 44 and 48 are mixed, and the up-converted frequency signal is obtained. Second converters 7 and 25 to be generated, first pass filters 8 and 26 for removing harmonic signals of the upconverted frequency signal from the second converters 7 and 25, and the first pass filter And fourth amplifiers 9 and 27 for amplifying the signals output from 8 and 26 to a predetermined power level.
Korean Patent Publication KR10-2004-43825

一方、図１に示すように、受信処理部３８は、構成の側面からみて、前記送信処理部３７と同様である。但し、入力及び出力周波数信号と、発振器４５、４９及び周波数合成器４６、５０から出力される局部発振周波数の信号のみが異なるので、受信処理部に対する説明は省略する。
前述したマルチバンドシステムの送受信装置は、ＣＤＭＡ、ＷＣＤＭＡバンドに応じてそれぞれの個別的な発振器と周波数合成器を構成することにより、回路が複雑であって製品の信頼性が低下するという問題点があった。
また、送信及び受信装置それぞれに、相異なる周波数を生成する発振器及び周波数合成器を構成することにより、製品コストが上昇するという問題点があった。 On the other hand, as shown in FIG. 1, the reception processing unit 38 is the same as the transmission processing unit 37 in terms of the configuration. However, since only the input and output frequency signals are different from the signals of the local oscillation frequencies output from the oscillators 45 and 49 and the frequency synthesizers 46 and 50, description of the reception processing unit is omitted.
The above-described transmission / reception apparatus of the multiband system has a problem that the circuit is complicated and the reliability of the product is lowered by configuring the individual oscillators and frequency synthesizers according to the CDMA and WCDMA bands. there were.
In addition, there is a problem in that the product cost is increased by configuring an oscillator and a frequency synthesizer that generate different frequencies in the transmission and reception devices.

そこで、本発明はこのような問題点に鑑みてなされたもので、その目的とするところは、単一基準周波数信号から局部発振周波数信号を出力する周波数合成器、及び前記局部発振周波数信号を均一に分配する、多数の入出力部が備えられた分配器からマルチバンド送受信装置の各コンバータに単一局部発振周波数信号を提供することにより、製品コストを低減し且つ製品の信頼性を向上させたマルチバンド送受信装置を提供することにある。   Accordingly, the present invention has been made in view of such problems, and the object of the present invention is to provide a frequency synthesizer that outputs a local oscillation frequency signal from a single reference frequency signal, and a uniform local oscillation frequency signal. By providing a single local oscillation frequency signal to each converter of a multiband transceiver from a distributor equipped with a number of input / output units, the product cost was reduced and the product reliability was improved. The object is to provide a multiband transceiver.

上記目的を達成するために、本発明のある観点によれば、所定の単一基準周波数を生成する発振器と、前記発振器で生成された単一基準周波数信号を用いて一定の局部発振周波数信号を出力する周波数合成器と、前記局部発振周波数信号を均一に分配する、多数の出力部が備えられた分配器と、前記分配器に備えられた多数の出力部から出力された局部発振周波数信号を受け取り、ＣＤＭＡ、ＷＣＤＭＡ、ＧＰＳ、ＤＭＢバンドを含むマルチバンドの周波数信号それぞれの周波数ダウンコンバートおよび周波数アップコンバートの際に共用して、前記マルチバンドの周波数信号それぞれを補償した後、中継する複数のマルチバンド処理部と、を含むことを特徴とするマルチバンド送受信装置を提供する。 In order to achieve the above object, according to one aspect of the present invention, an oscillator that generates a predetermined single reference frequency, and a constant local oscillation frequency signal using a single reference frequency signal generated by the oscillator are generated. An output frequency synthesizer, a distributor having a plurality of output units for uniformly distributing the local oscillation frequency signal, and a local oscillation frequency signal output from a plurality of output units provided in the distributor. A plurality of multi-band signals that are shared and shared during frequency down-conversion and frequency up-conversion of multi-band frequency signals including CDMA, WCDMA, GPS, and DMB bands, and compensated for each of the multi-band frequency signals. A multiband transmission / reception apparatus comprising: a band processing unit.

また、本発明のマルチバンド送受信装置は、所定の単一基準周波数信号を生成する発振器をさらに含むことを特徴とする。
また、前記マルチバンド処理部は、ＣＤＭＡ(Code Division Multiple Access)、ＷＣＤＭＡ(Wide-band Code Division Multiple Access)、ＧＰＳ(Global Positioning System)、ＤＭＢ(Digital Audio Broadcasting)バンドの送信及び受信処理部を含むことを特徴とする。 The multiband transceiver according to the present invention further includes an oscillator for generating a predetermined single reference frequency signal.
The multiband processing unit includes a transmission and reception processing unit for CDMA (Code Division Multiple Access), WCDMA (Wide-band Code Division Multiple Access), GPS (Global Positioning System), and DMB (Digital Audio Broadcasting) bands. It is characterized by that.

また、前記送信処理部は、送信周波数信号を低雑音増幅して出力する第１増幅器と、前記出力された周波数信号と前記分配器から出力される局部発振周波数信号とを混合して中間周波数信号にダウンコンバートさせる第１コンバータと、前記ダウンコンバートされた中間周波数信号を増幅して出力する第２増幅器と、前記第２増幅器から出力された中間周波数信号の隣接周波数及び高調波信号を除去して通過させる第１表面弾性濾波器と、前記通過された中間周波数信号の電力の大きさを調整する第１可変減衰器と、前記調整された中間周波数信号を増幅して出力する第３増幅器と、前記出力された中間周波数信号と前記分配器から出力される局部発振周波数信号とを混合して元の周波数信号にアップコンバートさせる第２コンバータと、前記アップコンバートされた周波数信号の高調波信号を除去して通過させる第１通過濾波器と、前記通過された周波数信号を増幅して出力する第４増幅器とから構成されることを特徴とする。   Further, the transmission processing unit mixes the output frequency signal and the local oscillation frequency signal output from the distributor by mixing the first frequency amplifier for amplifying and outputting the transmission frequency signal with low noise, and generating an intermediate frequency signal. A first converter that down-converts the output signal, a second amplifier that amplifies and outputs the down-converted intermediate frequency signal, and an adjacent frequency and a harmonic signal of the intermediate frequency signal output from the second amplifier are removed. A first surface acoustic filter that passes; a first variable attenuator that adjusts the magnitude of the power of the passed intermediate frequency signal; a third amplifier that amplifies and outputs the adjusted intermediate frequency signal; A second converter for mixing the output intermediate frequency signal and the local oscillation frequency signal output from the distributor and upconverting the original frequency signal; A first pass filter for passing by removing the harmonic signal of the up-converted frequency signals, characterized in that it is composed of a fourth amplifier for amplifying and outputting the pass frequency signal.

また、前記受信処理部は、受信周波数信号を低雑音増幅して出力する第５増幅器と、前記出力された周波数信号と前記分配器から出力される局部発振周波数信号とを混合して中間周波数信号にダウンコンバートさせる第３コンバータと、前記ダウンコンバートされた中間周波数信号を増幅して出力する第６増幅器と、前記第６増幅器から出力された中間周波数信号の隣接周波数及び高調波信号を除去して通過させる第２表面弾性濾波器と、前記通過された中間周波数信号の電力の大きさを調整する第２可変減衰器と、前記調整された中間周波数信号を増幅して出力する第７増幅器と、前記出力された中間周波数信号と前記分配器から出力される局部発振周波数信号とを混合して元の周波数信号にアップコンバートさせる第４コンバータと、前記アップコンバートされた周波数信号の高調波信号を除去して通過させる第２通過濾波器と、前記通過された周波数信号を増幅して出力する第８増幅器とから構成されることを特徴とする。   In addition, the reception processing unit mixes the output frequency signal and the local oscillation frequency signal output from the distributor by mixing a fifth frequency amplifier that amplifies the reception frequency signal with low noise and outputs the intermediate frequency signal. A third converter that down-converts the output signal, a sixth amplifier that amplifies and outputs the down-converted intermediate frequency signal, and removes adjacent frequencies and harmonic signals of the intermediate frequency signal output from the sixth amplifier. A second surface acoustic filter to pass; a second variable attenuator for adjusting the magnitude of the power of the passed intermediate frequency signal; a seventh amplifier for amplifying and outputting the adjusted intermediate frequency signal; A fourth converter for mixing the output intermediate frequency signal and the local oscillation frequency signal output from the distributor and upconverting the original frequency signal; A second pass filter for passing by removing the harmonic signal of the up-converted frequency signals, characterized in that it is composed of the eighth amplifier for amplifying and outputting the pass frequency signal.

上述した本発明は、単一基準周波数信号から局部発振周波数信号を出力する周波数合成器、及び前記局部発振周波数信号を均一に分配する、多数の入出力部が備えられた分配器から、マルチバンド送受信装置の各コンバータに単一局部発振周波数信号を提供することにより、製品コストを低減し且つ製品の信頼性を向上させることができるという効果を持つ。   The present invention described above includes a frequency synthesizer that outputs a local oscillation frequency signal from a single reference frequency signal, and a distributor that includes a plurality of input / output units that uniformly distribute the local oscillation frequency signal. Providing a single local oscillation frequency signal to each converter of the transmission / reception device has the effect of reducing product cost and improving product reliability.

以下に添付図面を参照しながら、本発明の好適な一実施例について詳細に説明する。
図２は本発明の一実施例に係るマルチバンド送受信装置の構成図である。図２に示すように、本発明のマルチバンド送受信装置は、ＣＤＭＡバンド及びＷＣＤＭＡバンドの送信処理部３７と受信処理部３８から構成される。 DESCRIPTION OF EMBODIMENTS Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 2 is a block diagram of a multiband transmitting / receiving apparatus according to an embodiment of the present invention. As shown in FIG. 2, the multiband transmission / reception apparatus of the present invention includes a transmission processing unit 37 and a reception processing unit 38 for the CDMA band and the WCDMA band.

発振器５１は、周波数安定度が高くて一定の温度に維持させる恒温槽水晶発振器または周波数安定度の低い温度補償水晶発振器からなって、所定の基準周波数信号を発振して生成する。
周波数合成器５２は、前記発振器５１で生成された所定の基準周波数信号から分周器で分周された出力信号の位相及び周波数を検出し、検出された位相及び周波数信号を制御して所望の局部発振周波数信号を発振して出力する。
分配器５３は、前記周波数合成器５２から出力される局部発振周波数信号が入力され、各出力部に応じて局部発振周波数信号を均一に分配する。 The oscillator 51 includes a thermostat crystal oscillator having a high frequency stability and maintained at a constant temperature or a temperature-compensated crystal oscillator having a low frequency stability, and oscillates and generates a predetermined reference frequency signal.
The frequency synthesizer 52 detects the phase and frequency of the output signal divided by the frequency divider from the predetermined reference frequency signal generated by the oscillator 51, and controls the detected phase and frequency signal to obtain a desired frequency. Oscillate and output local oscillation frequency signal.
The distributor 53 receives the local oscillation frequency signal output from the frequency synthesizer 52, and uniformly distributes the local oscillation frequency signal according to each output unit.

前記送信処理部３７は、所定の基準周波数信号を生成する発振器５１と、前記基準周波数信号から局部発振周波数信号を出力する周波数合成器５２と、前記局部発振周波数信号を均一に分配する、多数の入出力部が備えられた分配器５３と、送信周波数信号を低雑音増幅して出力する第１増幅器１、１９と、前記第１増幅器１、１９から出力された周波数信号と前記分配器５３から出力される局部発振周波数信号とを混合して所定の中間周波数にダウンコンバートさせる第１コンバータ２、２０と、前記第１コンバータ２、２０で所定の中間周波数にダウンコンバートされた信号を増幅して出力する第２増幅器３、２１と、前記第２増幅器３、２１から出力された中間周波数信号の隣接周波数及び高調波信号を除去して通過させる第１表面弾性濾波器４、２２と、前記通過された中間周波数信号の電力の大きさを調整する第１可変減衰器５、２３と、前記第１可変減衰器５、２３で調整された中間周波数信号を増幅して出力する第３増幅器６、２４と、前記第３増幅器６、２４から出力された中間周波数信号と前記分配器５３から出力される局部発振周波数信号とを混合して元の周波数信号にアップコンバートさせる第２コンバータ７、２５と、前記第２変関器７、２５でアップコンバートされた周波数信号の高調波信号を除去して通過させる第１通過濾波器８、２６と、前記第１通過濾波器８、２６で通過された周波数信号を増幅して出力する第４増幅器９、２７とから構成される。   The transmission processing unit 37 includes an oscillator 51 that generates a predetermined reference frequency signal, a frequency synthesizer 52 that outputs a local oscillation frequency signal from the reference frequency signal, and a number of the local oscillation frequency signals that are uniformly distributed. A divider 53 provided with an input / output unit; first amplifiers 1 and 19 that amplify and output a transmission frequency signal with low noise; and frequency signals output from the first amplifiers 1 and 19 and the divider 53 The first converters 2 and 20 that mix the output local oscillation frequency signal and downconvert to a predetermined intermediate frequency, and amplify the signal downconverted to the predetermined intermediate frequency by the first converters 2 and 20 Second amplifiers 3 and 21 to be output, and first surface bullets that pass through by removing adjacent frequencies and harmonic signals of intermediate frequency signals output from the second amplifiers 3 and 21. Filters 4, 22, first variable attenuators 5, 23 for adjusting the magnitude of the power of the passed intermediate frequency signal, and amplifying the intermediate frequency signal adjusted by the first variable attenuators 5, 23 The third amplifiers 6 and 24 to be output and the intermediate frequency signal output from the third amplifiers 6 and 24 and the local oscillation frequency signal output from the distributor 53 are mixed to increase the original frequency signal. Second converters 7 and 25 for conversion, first pass filters 8 and 26 for removing and passing higher harmonic signals of the frequency signal up-converted by the second transformers 7 and 25, and the first pass It comprises fourth amplifiers 9 and 27 that amplify and output the frequency signals passed through the filters 8 and 26.

前記受信処理部３８は、受信周波数信号を低雑音増幅して出力する第５増幅器１０、２８と、前記第５増幅器１０、２８から出力された周波数信号と前記分配器５３から出力される局部発振周波数信号とを混合して所定の中間周波数にダウンコンバートさせる第３コンバータ１１、２９と、前記第３コンバータ１１、２９で所定の中間周波数にダウンコンバートされた中間周波数信号を増幅して出力する第６増幅器１２、３０と、前記第６増幅器１２、３０から出力された中間周波数信号の隣接周波数及び高調波信号を除去して通過させる第２表面弾性濾波器１３、３１と、前記第２表面弾性濾波器１３、３１で通過された中間周波数信号の電力の大きさを調整する第２可変減衰器１４、３２と、前記第２可変減衰器１４、３２で調整された周波数信号を増幅して出力する第７増幅器１５、３３と、前記第７増幅器１５、３３から出力された中間周波数信号と前記分配器５３から出力される局部発振周波数信号とを混合して元の周波数信号にアップコンバートさせる第４コンバータ１６、３４と、前記第４コンバータ１６、３４でアップコンバートされた周波数信号の高調波信号を除去して通過させる第２通過濾波器１７、３５と、前記第２通過濾波器１７、３５で通過された周波数信号を増幅して出力する第８増幅器１８、３６とから構成される。   The reception processing unit 38 includes fifth amplifiers 10 and 28 that amplify and output a reception frequency signal with low noise, frequency signals output from the fifth amplifiers 10 and 28, and local oscillation output from the distributor 53. Third converters 11 and 29 for mixing frequency signals and downconverting to a predetermined intermediate frequency, and amplifying and outputting the intermediate frequency signal downconverted to a predetermined intermediate frequency by the third converters 11 and 29 6 amplifiers 12 and 30; second surface elastic filters 13 and 31 that remove and pass adjacent frequencies and harmonic signals of the intermediate frequency signal output from the sixth amplifiers 12 and 30; and the second surface elasticity. The second variable attenuators 14 and 32 for adjusting the magnitude of the power of the intermediate frequency signal passed through the filters 13 and 31 and the second variable attenuators 14 and 32 are adjusted. The seventh amplifiers 15 and 33 for amplifying and outputting the wave number signal, the intermediate frequency signal output from the seventh amplifiers 15 and 33, and the local oscillation frequency signal output from the distributor 53 are mixed to obtain the original Fourth converters 16 and 34 for up-conversion to frequency signals, second pass filters 17 and 35 for removing and passing higher harmonic signals of the frequency signals up-converted by the fourth converters 16 and 34, and The amplifiers 18 and 36 are configured to amplify and output the frequency signals passed by the two-pass filters 17 and 35.

前記第１増幅器１、１９は、基地局と端末機との間に設定されたダウンリンクチャネルの高周波送信信号の入力を受け、所定の増幅利得で低雑音増幅して出力する。
前記第１コンバータ２、２０は、前記第１増幅器１、１９で増幅して出力された周波数信号と前記分配器５３から出力される局部発振周波数信号とを混合して所定の中間周波数信号に変換する。例えば、前記第１増幅器１、１９に入力された信号の周波数が１８５０ＭＨｚでありかつ前記分配器５３の局部発振周波数信号が２０４０ＭＨｚであれば、出力信号は（２０４０−１８５０［ＭＨｚ］）＝１９０ＭＨｚの中間周波数信号を有する。第１変換器２、２０によって発生した変換損失は、後段に連結された第２増幅器３、２１によって増幅されて補償される。前記第２増幅器３、２１によって増幅された信号は、第１表面弾性濾波器４、２２によって隣接周波数及び高調波信号成分が除去され、所望する周波数帯域の信号のみを通過させるための第１表面弾性濾波器４、２２は、当該中心周波数を有しなければならない。例えば、中間周波数信号が１６０ＭＨｚであれば、前記第１表面弾性濾波器４、２２の中心周波数は１６０ＭＨｚでなければならない。前記第１表面弾性濾波器４、２２で通過された信号は、第１可変減衰器５、２３によってその出力電力の大きさが調整される。また、前記第３増幅器６、２４は、前記第１表面弾性濾波器４、２２によって発生した損失を補償するために、第１可変減衰器５、２３の後段に連結される。 The first amplifiers 1 and 19 receive an input of a high frequency transmission signal of a downlink channel set between a base station and a terminal, amplify the noise with a predetermined amplification gain, and output the amplified signal.
The first converters 2 and 20 mix the frequency signal amplified and output by the first amplifiers 1 and 19 and the local oscillation frequency signal output from the distributor 53 and convert the mixed signal into a predetermined intermediate frequency signal. To do. For example, if the frequency of the signal input to the first amplifiers 1 and 19 is 1850 MHz and the local oscillation frequency signal of the distributor 53 is 2040 MHz, the output signal is (2040-1850 [MHz]) = 190 MHz. Has an intermediate frequency signal. The conversion loss generated by the first converters 2 and 20 is amplified and compensated by the second amplifiers 3 and 21 connected in the subsequent stage. The signals amplified by the second amplifiers 3 and 21 are removed from the adjacent frequency and harmonic signal components by the first surface acoustic filters 4 and 22, and the first surface for passing only signals in a desired frequency band. The elastic filters 4, 22 must have the center frequency. For example, if the intermediate frequency signal is 160 MHz, the center frequency of the first surface acoustic filters 4 and 22 must be 160 MHz. The magnitude of the output power of the signals passed through the first surface acoustic filters 4 and 22 is adjusted by the first variable attenuators 5 and 23. The third amplifiers 6 and 24 are connected to the subsequent stage of the first variable attenuators 5 and 23 in order to compensate for the loss generated by the first surface acoustic filters 4 and 22.

前記第２コンバータ７、２５は、前記第３増幅器６、２４から出力された周波数信号と前記分配器５３から出力される局部発振周波数信号とを混合し、前記第１増幅器１、１９に入力された信号と同一の周波数を有する。例えば、前記第３増幅器６、２４から出力された信号の周波数が１９０ＭＨｚでありかつ前記分配器５３の局部発振周波数信号が２０４０ＭＨｚであれば、前記第２コンバータ７、２５によって出力される周波数信号は、前記第１増幅器１、１９に入力された送信周波数（２０４０−１９０［ＭＨｚ］）＝１８５０ＭＨｚを有する。   The second converters 7 and 25 mix the frequency signal output from the third amplifiers 6 and 24 and the local oscillation frequency signal output from the distributor 53, and input them to the first amplifiers 1 and 19. Have the same frequency as the signal. For example, if the frequency of the signal output from the third amplifiers 6 and 24 is 190 MHz and the local oscillation frequency signal of the distributor 53 is 2040 MHz, the frequency signal output by the second converters 7 and 25 is , The transmission frequency (2040-190 [MHz]) input to the first amplifiers 1 and 19 = 1850 MHz.

前記第１通過濾波器８、２６は、第２コンバータ７、２５から出力された周波数信号から高調波成分を除去し、通過させるために、第２コンバータ７、２５の後段に連結される。
前記第４増幅器９、２７は、前記第１通過濾過器８、２６で通過された周波数信号を適切な大きさに増幅して最終出力する。 The first pass filters 8 and 26 are connected to the subsequent stage of the second converters 7 and 25 in order to remove and pass harmonic components from the frequency signals output from the second converters 7 and 25.
The fourth amplifiers 9 and 27 amplify the frequency signal passed through the first passage filters 8 and 26 to an appropriate magnitude and finally output the amplified signal.

また、前記第５増幅器１０、２８は、基地局と端末機との間に設定されたアップリンクチャネルの高周波受信信号の入力を受け、所定の増幅利得で低雑音増幅して出力する。
前記第３コンバータ１１、２９は、前記第５増幅器１０、２８で増幅して出力された周波数信号と前記分配器５３から出力される局部発振周波数信号とを混合し、所定の中間周波数信号に変換する。例えば、前記第５増幅器１０、２８に入力された信号の周波数が１７６０ＭＨｚでありかつ前記分配器５３の局部発振周波数信号が２０４０ＭＨｚであれば、出力信号は（２０４０−１７６０［ＭＨｚ］）＝２８０ＭＨｚの中間周波数信号を有する。第３コンバータ１１、２９によって発生した変換損失は、後段に連結された第６増幅器１２、３０によって増幅されて補償される。前記第６増幅器１２、３０によって増幅された信号は、第２表面弾性濾波器１３、３１によって隣接周波数及び高調波信号成分が除去され、所望の周波数帯域の信号のみを通過させるための第２表面弾性濾波器１３、３１は、当該中心周波数を有しなければならない。例えば、中間周波数信号が２８０ＭＨｚであれば、前記第２表面弾性濾波器１３、３１の中心周波数は２８０ＭＨｚでなければならない。前記第２表面弾性濾波器１３、３１で通過された信号は、第２可変減衰器１４、３２によってその出力電力の大きさが調整される。また、前記第７増幅器１５、３３は、前記第２表面弾性濾波器１３、３１によって発生した損失を補償するために、第２可変減衰器１４、３２の後段に連結される。 The fifth amplifiers 10 and 28 receive an uplink channel high frequency reception signal set between the base station and the terminal, amplify the noise with a predetermined amplification gain, and output the amplified signal.
The third converters 11 and 29 mix the frequency signal amplified and output by the fifth amplifiers 10 and 28 and the local oscillation frequency signal output from the distributor 53, and convert them to a predetermined intermediate frequency signal. To do. For example, if the frequency of the signal input to the fifth amplifiers 10 and 28 is 1760 MHz and the local oscillation frequency signal of the distributor 53 is 2040 MHz, the output signal is (2040-1760 [MHz]) = 280 MHz. Has an intermediate frequency signal. The conversion loss generated by the third converters 11 and 29 is amplified and compensated by the sixth amplifiers 12 and 30 connected in the subsequent stage. The signals amplified by the sixth amplifiers 12 and 30 are removed from the adjacent frequency and harmonic signal components by the second surface acoustic filters 13 and 31, and the second surface for passing only signals in a desired frequency band. The elastic filters 13, 31 must have the center frequency. For example, if the intermediate frequency signal is 280 MHz, the center frequency of the second surface acoustic filters 13 and 31 must be 280 MHz. The magnitude of the output power of the signals passed through the second surface acoustic filters 13 and 31 is adjusted by the second variable attenuators 14 and 32. The seventh amplifiers 15 and 33 are connected to the subsequent stage of the second variable attenuators 14 and 32 in order to compensate for the loss generated by the second surface acoustic filters 13 and 31.

前記第４コンバータ１６、３４は、前記第７増幅器１５、３３で増幅して出力された周波数信号と前記分配器５３から出力される局部発振周波数信号とを混合し、前記第５増幅器１０、２８に入力された信号と同一の周波数を有する。例えば、前記第７増幅器１５、３３から出力された信号の周波数が２８０ＭＨｚでありかつ前記分配器５３の局部発振周波数信号が２０４０ＭＨｚであれば、前記第４コンバータ１６、３４によって出力される周波数信号は、前記第５増幅器１０、２８に入力された受信周波数（２０４０−２８０［ＭＨｚ］）＝１７６０ＭＨｚを有する。   The fourth converters 16 and 34 mix the frequency signals amplified and output by the seventh amplifiers 15 and 33 and the local oscillation frequency signals output from the distributor 53, and the fifth amplifiers 10 and 28. Have the same frequency as the signal input to. For example, if the frequency of the signal output from the seventh amplifiers 15 and 33 is 280 MHz and the local oscillation frequency signal of the distributor 53 is 2040 MHz, the frequency signal output by the fourth converters 16 and 34 is , Receiving frequency (2040-280 [MHz]) = 1760 MHz input to the fifth amplifiers 10 and 28.

前記第２通過濾波器１７、３５は、第４コンバータ１６、３４から出力された周波数信号から高調波成分を除去し、通過させるために、第４コンバータ１６、３４の後段に連結される。
前記第８増幅器１８、３６は、前記第２通過濾波器１７、３５から通過された周波数信号を適切な大きさに増幅して最終出力する。
前記ＣＤＭＡ、ＷＣＤＭＡバンドの他に、ＧＰＳ、ＤＭＢバンド送信及び受信処理部をさらに含んでもよい。 The second pass filters 17 and 35 are connected to the subsequent stage of the fourth converters 16 and 34 in order to remove and pass harmonic components from the frequency signals output from the fourth converters 16 and 34.
The eighth amplifiers 18 and 36 amplify the frequency signal passed from the second pass filters 17 and 35 to an appropriate magnitude and finally output the amplified signal.
In addition to the CDMA and WCDMA bands, a GPS and DMB band transmission and reception processing unit may be further included.

従来の技術に係るマルチバンドシステムの送受信装置の構成図である。It is a block diagram of the transmission / reception apparatus of the multiband system which concerns on a prior art. 本発明の一実施例に係るマルチバンド送受信装置の構成図である。1 is a configuration diagram of a multiband transmitting / receiving apparatus according to an embodiment of the present invention.

符号の説明Explanation of symbols

１、１９・・・第１増幅器、２、２０・・・第１コンバータ、３、２１・・・第２増幅器、４、２２・・・第１表面弾性濾波器、５、２３・・・第1可変減衰器、６、２４・・・第３増幅器、７、２５・・・第２コンバータ、８、２６・・・第１通過濾波器、９、２７・・・第４増幅器、１０、２８・・・第５増幅器、１１、２９・・・第３コンバータ、１２、３０・・・第６増幅器、１３、３１・・・第２表面弾性濾波器、１４、３２・・・ 第２可変減衰器、１５、３３・・・第７増幅器、１６、３４・・・第４コンバータ、１７、３５・・・第２通過濾波器、１８、３６・・・第８増幅器、３７・・・送信処理部、３８・・・受信処理部、４３、４５、４７、４９、５１・・・発振器、４４、４６、４８、５０、５２・・・周波数合成器、５３・・・分配器   DESCRIPTION OF SYMBOLS 1, 19 ... 1st amplifier, 2, 20 ... 1st converter, 3, 21 ... 2nd amplifier, 4, 22 ... 1st surface acoustic filter, 5, 23 ... 1st 1 variable attenuator, 6, 24 ... third amplifier, 7, 25 ... second converter, 8, 26 ... first pass filter, 9, 27 ... fourth amplifier, 10, 28 ... 5th amplifier, 11, 29 ... 3rd converter, 12, 30 ... 6th amplifier, 13, 31 ... 2nd surface acoustic filter, 14, 32 ... 2nd variable attenuation 15, 33 ... seventh amplifier, 16, 34 ... fourth converter, 17, 35 ... second pass filter, 18, 36 ... eighth amplifier, 37 ... transmission processing , 38... Reception processing unit, 43, 45, 47, 49, 51... Oscillator, 44, 46, 48, 50, 52. 53 ... distributor

Claims (4)

所定の単一基準周波数を生成する発振器と、
前記発振器で生成された単一基準周波数信号を用いて一定の局部発振周波数信号を出力する周波数合成器と、
前記局部発振周波数信号を均一に分配する、多数の出力部が備えられた分配器と、
前記分配器に備えられた多数の出力部から出力された局部発振周波数信号を受け取り、ＣＤＭＡ、ＷＣＤＭＡ、ＧＰＳ、ＤＭＢバンドを含むマルチバンドの周波数信号それぞれの周波数ダウンコンバートおよび周波数アップコンバートの際に共用して、前記マルチバンドの周波数信号それぞれを補償した後、中継する複数のマルチバンド処理部と、
を含むことを特徴とするマルチバンド送受信装置。 An oscillator that generates a predetermined single reference frequency;
A frequency synthesizer that outputs a constant local oscillation frequency signal using a single reference frequency signal generated by the oscillator ;
A distributor with a number of outputs for uniformly distributing the local oscillation frequency signal;
Receives local oscillation frequency signals output from a number of output units provided in the distributor and is shared during frequency down-conversion and frequency up-conversion of multiband frequency signals including CDMA, WCDMA, GPS, and DMB bands. A plurality of multiband processing units for relaying after compensating each of the multiband frequency signals;
A multiband transmitting / receiving apparatus comprising: 前記マルチバンド処理部は、ＣＤＭＡ、ＷＣＤＭＡ、ＧＰＳ、ＤＭＢバンドの周波数信号を送信または受信する送信処理部及び受信処理部を含むことを特徴とする請求項１に記載のマルチバンド送受信装置。   The multiband transmission / reception apparatus according to claim 1, wherein the multiband processing unit includes a transmission processing unit and a reception processing unit that transmit or receive CDMA, WCDMA, GPS, and DMB band frequency signals. 前記送信処理部は、送信周波数信号を低雑音増幅して出力する第１増幅器と、
前記出力された周波数信号と前記分配器から出力される局部発振周波数信号と混合して中間周波数信号にダウンコンバートさせる第１コンバータと、
前記ダウンコンバートされた中間周波数信号を増幅して出力する第２増幅器と、
前記第２増幅器から出力された中間周波数信号の隣接周波数及び高調波信号を除去して通過させる第１表面弾性濾波器と、
前記通過された中間周波数信号の電力の大きさを調整する第１可変減衰器と、
前記調整された中間周波数信号を増幅して出力する第３増幅器と、
前記出力された中間周波数信号と前記分配器から出力される局部発振周波数信号とを混合して元の周波数信号にアップコンバートさせる第２コンバータと、
前記アップコンバートされた周波数信号の高調波信号を除去して通過させる第１通過濾波器と、
前記通過された周波数信号を増幅して出力する第４増幅器と、からなることを特徴とする請求項２に記載のマルチバンド送受信装置。 The transmission processing unit includes a first amplifier that amplifies and outputs a transmission frequency signal with low noise;
A first converter that mixes the output frequency signal and a local oscillation frequency signal output from the distributor and down-converts the signal to an intermediate frequency signal;
A second amplifier for amplifying and outputting the down-converted intermediate frequency signal;
A first surface acoustic filter that removes and passes adjacent frequencies and harmonic signals of the intermediate frequency signal output from the second amplifier;
A first variable attenuator for adjusting the magnitude of the power of the passed intermediate frequency signal;
A third amplifier for amplifying and outputting the adjusted intermediate frequency signal;
A second converter that mixes the output intermediate frequency signal and the local oscillation frequency signal output from the distributor and upconverts the original frequency signal;
A first pass filter that removes and passes the harmonic signal of the upconverted frequency signal;
The multiband transmitting / receiving apparatus according to claim 2, further comprising: a fourth amplifier that amplifies and outputs the passed frequency signal. 前記受信処理部は、
受信周波数信号を低雑音増幅して出力する第５増幅器と、
前記出力された周波数信号と前記分配器から出力される局部発振周波数信号とを混合して中間周波数信号にダウンコンバートさせる第３コンバータと、
前記ダウンコンバートされた中間周波数信号を増幅して出力する第６増幅器と、
前記第６増幅器から出力された中間周波数信号の隣接周波数及び高調波信号を除去して通過させる第２表面弾性濾波器と、
前記通過された中間周波数信号の電力の大きさを調整する第２可変減衰器と、
前記調整された中間周波数信号を増幅して出力する第７増幅器と、
前記出力された中間周波数信号と前記分配器から出力される局部発振周波数信号を混合して元の周波数信号にアップコンバートさせる第４コンバータと、
前記アップコンバートされた周波数信号の高調波信号を除去して通過させる第２通過濾波器と、
前記通過された周波数信号を増幅して出力する第８増幅器と、からなることを特徴とする請求項２に記載のマルチバンド送受信装置。 The reception processing unit
A fifth amplifier for amplifying the received frequency signal with low noise and outputting;
A third converter for mixing the output frequency signal and the local oscillation frequency signal output from the distributor and downconverting to an intermediate frequency signal;
A sixth amplifier for amplifying and outputting the down-converted intermediate frequency signal;
A second surface acoustic filter that removes and passes adjacent frequencies and harmonic signals of the intermediate frequency signal output from the sixth amplifier;
A second variable attenuator for adjusting the magnitude of the power of the passed intermediate frequency signal;
A seventh amplifier for amplifying and outputting the adjusted intermediate frequency signal;
A fourth converter for mixing the output intermediate frequency signal and the local oscillation frequency signal output from the distributor and upconverting the original frequency signal;
A second pass filter that removes and passes the harmonic signal of the upconverted frequency signal;
The multiband transmission / reception apparatus according to claim 2, comprising: an eighth amplifier that amplifies and outputs the passed frequency signal.
JP2006184715A 2005-07-05 2006-07-04 Multiband transceiver Expired - Fee Related JP4411302B2 (en)

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